Wound dressing



FIG. 1 is a perspective view of a wound dressing showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof; and,

FIG. 4 is a right side view thereof.

The broken line showing of portions of the wound dressing illustrates the environment of the claimed design and forms no part thereof.

Any surfaces not visible in the figures form no part of the claimed design. 

CLAIM The ornamental design for a wound dressing, as shown and described. 